from datetime import datetime, timedelta
import time
from flask import render_template, request, jsonify, current_app, session, redirect, url_for, g, abort

from info import constants, db
from info.models import User, News, Category
from info.utils.common import user_login_data
from info.utils.image_storage import storage
from info.utils.response_code import RET


from . import admin_blu


@admin_blu.route("/news_type",methods =["GET","POST"])
def news_type():
    if request.method == "GET":
        # 查询分类数据
        try:
            categories = Category.query.all()
        except Exception as e :
            current_app.logger.error(e)
            return jsonify(errno = RET.DBERR,errmsg = "数据查询失败")
        cate_dict_li = []
        for category in categories:
            cate_dict_li.append(category.to_dict())
        cate_dict_li.pop(0)
        data = {
            "categories":cate_dict_li
        }


        return render_template("admin/news_type.html",data = data)
    # 新增或修改数据
    # 1.取参数
    cname = request.json.get("name")
    # 如果传了cid代表编辑已存在的分类
    cid = request.json.get("id")
    if not cname:
        return jsonify(errno = RET.PARAMERR,errmsg = "参数错误")
    if cid:
        # 有分类id代表查询相关数据
        try:
            cid = int(cid)
            category = Category.query.get(cid)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
        if not category:
            return jsonify(errno=RET.NODATA, errmsg="未查询到分类数据")
        category.name = cname
    else:
        category = Category()
        category.name = cname
        db.session.add(category)
    return jsonify(errno=RET.OK, errmsg="OK")


@admin_blu.route("/news_edit_detail",methods =["POST","GET"])
def news_edit_detail():
    """
    新闻版本编辑
    :return:
    """
    if request.method == "GET":
        # 查询点击的新闻的相关数据并传入到模板中
        news_id = request.args.get("news_id")
        if not news_id:
            abort(404)
        try:
            news_id = int(news_id)
        except Exception as e:
            current_app.logger.error(e)
            return render_template("admin/news_edit_detail.html",errmsg = "参数错误")
        try:
            news = News.query.get(news_id)
        except Exception as e:
            current_app.logger.error(e)
            return render_template("admin/news_edit_detail.html",errmsg = "数据查询错误")
        if not news:
            return render_template("admin/news_edit_detail.html",errmsg = "未查询到数据")

        categories = []
        try:
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)
            return render_template("admin/news_edit_detail.html", errmsg="数据查询错误")
        category_dict_li = []
        for category in categories:
            cate_dict = category.to_dict()
            # 判断当前遍历到的分类是否是当前新闻你的分类，如果是，则添加is_selected为True
            if category.id == news.category_id:
                cate_dict["is_selected"] = True
            category_dict_li.append(cate_dict)

        category_dict_li.pop(0)

        data = {
            "news":news.to_dict(),
            "categories":category_dict_li

        }
        return render_template("admin/news_edit_detail.html",data = data)
    # 取到POST进来的数据
    news_id = request.form.get("news_id")
    title = request.form.get("title")
    digest = request.form.get("digest")
    content = request.form.get("content")
    index_img = request.files.get("index_img")
    category_id = request.form.get("category_id")
    if not all([title,digest,content,category_id]):
        return jsonify(errno = RET.PARAMERR,errmsg = "参数错误")
    # 查询指定的id
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno = RET.DBERR,errmsg = "查询数据失败")
    if not news:
        return jsonify(errno = RET.NODATA,errmsg = "未查询到新闻数据")
    # 尝试读取图片
    if index_img:
        try:
            index_img = index_img.read()
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
        # 将图片上传到七牛
        try:
            key = storage(index_img)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.THIRDERR, errmsg="上传图片错误")
        news.index_image_url = constants.QINIU_DOMIN_PREFIX+key
    # 设定相关数据
    news.title = title
    news.digest = digest
    news.content = content
    news.category_id = category_id
    return jsonify(errno=RET.OK, errmsg="OK")


@admin_blu.route("/news_edit")
def news_edit():
    page = request.args.get("p",1)
    keywords = request.args.get(("keywords",None))
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1
    filters = [News.status == 0]
    news_list = []
    current_page = 1
    total_page = 1
    # 如果关键字存在，那么就添加关键字搜索
    if keywords:
        filters.append(News.title.contains(keywords))

    try:
        paginate = News.query.filter(*filters).order_by(News.create_time.desc()).paginate(page,constants.ADMIN_NEWS_PAGE_MAX_COUNT,False)
        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)
    news_dict_li = []
    for news in news_list:
        news_dict_li.append(news.to_basic_dict())
    data = {
        "news_list":news_dict_li,
        "current_page":current_page,
        "total_page":total_page
    }

    return render_template("admin/news_edit.html",data=data)




@admin_blu.route("/news_review_action",methods=["GET","POST"])
def news_review_action():
    """
    审核逻辑
    :return:
    """

    # 1.获取参数
    news_id = request.json.get("news_id")
    action = request.json.get("action")
    # 2.校验参数
    if not all([news_id,action]):
        return jsonify(errno = RET.PARAMERR,errmsg = "参数错误")
    if action not in("accept","reject"):
        return jsonify(errno = RET.PARAMERR,errmsg = "参数错误")
    # 3.查询到指定的新闻数据
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="查询数据失败")

    if action == "accept":
        # 代表接受
        news.status = 0
        db.session.commit()
    else:
        # 代表拒绝
        reason = request.json.get("reason")
        if not reason:
            return jsonify(errno=RET.DBERR, errmsg="请输入拒绝原因")
        news.status = -1
        news.reason = reason


    return jsonify(errno=RET.OK, errmsg="OK")


@admin_blu.route("/news_review_detail/<int:news_id>")
def news_review_detail(news_id):
    """
    新闻审核
    :param news_id:
    :return:
    """
    # 1.通过ｉｄ查询数据
    news= None
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
    if not news:
        return render_template("admin/news_review_detail.html",data={"errmsg" :"未查询到此新闻"})
    # 2.返回数据
    data = {
        "news":news.to_dict()
    }

    return render_template("admin/news_review_detail.html",data = data)



@admin_blu.route("/news_review")
def news_review():
    page = request.args.get("page",1)
    keywords = request.args.get("keywords",None)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1
    news_list = []
    current_page = 1
    total_page = 1
    filters = [News.status != 0]
    #　如果关键字存在，那么就添加关键字搜索
    if keywords:
        filters.append(News.title.contains(keywords))
    try:
        paginate = News.query.filter(News.status != 0).order_by(News.create_time.desc()).paginate(page,constants.ADMIN_NEWS_PAGE_MAX_COUNT,False)
        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    news_dict_li = []
    for news in news_list:
        news_dict_li.append(news.to_review_dict())

    data = {
        "news_list":news_dict_li,
        "current_page":current_page,
        "total_page":total_page

    }
    return render_template("admin/news_review.html",data=data)


@admin_blu.route("/user_list")
def user_list():
    page = request.args.get("page",1)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1
    users = []
    current_page = 1
    total_page = 1
    try:
        paginate = User.query.filter(User.is_admin == False).paginate(page,constants.ADMIN_NEWS_PAGE_MAX_COUNT,False)
        users = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    user_dict_li = []
    for user in users:
        user_dict_li.append(user.to_admin_dict())

    data = {
        "users":user_dict_li,
        "current_page":current_page,
        "total_page":total_page
    }

    return render_template("admin/user_list.html",data=data)



@admin_blu.route("/user_count")
def user_count():
    # 总人数
    total_count =0
    try:
        total_count = User.query.filter(User.is_admin ==False).count()
    except Exception as e:
        current_app.logger.error(e)

    # 月新增数
    mon_count = 0
    # 获取当前时间
    t = time.localtime()
    begin_mon_data_str = '%d-%02d-01' % (t.tm_year,t.tm_mon)
    #　将字符串转换成datetime对象
    # 如果现在是2018.11.25号begin_mon_data就代表2018.11.01
    begin_mon_data = datetime.strptime(begin_mon_data_str,"%Y-%m-%d")
    try:
        mon_count = User.query.filter(User.is_admin ==False,User.create_time>begin_mon_data).count()
    except Exception as e:
        current_app.logger.error(e)

    # 日新增数
    day_count = 0
    begin_day_data = datetime.strptime(("%d-%02d-%02d" % (t.tm_year,t.tm_mon,t.tm_mday)),"%Y-%m-%d")
    try:
        day_count = User.query.filter(User.is_admin == False,User.create_time>begin_day_data).count()
    except Exception as e:
        current_app.logger.error(e)

        # 折线图数据
    active_time = []
    active_count = []
    for i in range(31):
        begin_data = begin_day_data - timedelta(days=i)
        end_data = begin_day_data - timedelta(days=(i-1))

        count = User.query.filter(User.is_admin == False,User.last_login >= begin_data,User.last_login< end_data).count()
        active_count.append(count)
        active_time.append(begin_data.strftime('%Y-%m-%d'))

    # print(active_time)
    # print(active_count)

    active_time.reverse()
    active_count.reverse()

    data = {
        "total_count":total_count,
        "mon_count":mon_count,
        "day_count":day_count,
        "active_count":active_count,
        "active_time":active_time
    }



    return render_template("admin/user_count.html",data=data)



@admin_blu.route("/index")
@user_login_data
def index():
    user = g.user

    return render_template("admin/index.html",user=user.to_dict())




@admin_blu.route("/login",methods = ["GET","POST"])
def login():
    if request.method == "GET":
        # 判断当前是否有用户登录
        user_id = session.get("user_id",None)
        is_admin = session.get("is_admin",False)
        if user_id and is_admin:
            return redirect(url_for("admin.index"))

        return render_template("admin/login.html")

    # 1.取到登录的参数
    username = request.form.get("username")
    password = request.form.get("password")

    # 2.判断参数
    if not all([username,password]):
        return render_template("admin/login.html",errmsg="参数错误")

    # 3.查询当前用户
    try:
        user = User.query.filter(User.mobile == username,User.is_admin == True).first()
    except Exception as e:
        current_app.logger.error(e)
        return render_template("admin/login.html", errmsg="用户信息查询失败")
    if not user:
        return render_template("admin/login.html", errmsg="未查询到用户信息")

    # 4.校验密码
    if not user.check_passowrd(password):
        return render_template("admin/login.html", errmsg="用户名或密码输入错误")

    # 5.保存用户登录信息
    session["user_id"]=user.id
    session["mobile"]=user.mobile
    session["nick_name"] = user.nick_name
    session["is_admin"] = user.is_admin

    # 登录成功跳转到后台首页
    return redirect(url_for("admin.index"))  # 蓝图　.　路由